.home {
  display: flex;
  flex-direction: column;
  row-gap: 20px;
}

ul {
  display: flex;
  column-gap: 30px;
}

ul a {
  display: inline-block;
  padding: 10px 20px;
  border: 1px solid #999;
  border-radius: 4px;
}

.main {
  padding: 10px 30px;
}

.active {
  background-color: royalblue;
  color: #fff;
}

ol li {
  padding: 10px;
  cursor: pointer;
}

.content {
  margin-top: 20px;
}